Chassis



FIG. 1 is a perspective view of a chassis showing my new design;

FIG. 2 is top plan view thereof;

FIG. 3 is a right-side elevation view thereof, the left-side elevation view being a mirror image thereof;

FIG. 4 is a rear elevation view thereof; and,

FIG. 5 is a front elevation view thereof.

The broken lines are for illustrative purpose only and form no part of the claimed design. 

CLAIM The ornamental design for a chassis, as shown and described. 